Hongchang Machinery's wear-resistant elbows, specifically designed for trailer pumps, are specialized accessories engineered to meet the operational requirements of long-distance horizontal concrete conveyance with trailer pumps and truck-mounted pumps.

Featuring a double-layer structure with a quenched and hardened inner wall, it achieves a hardness of HRC 58–62—delivering a service life more than three times that of standard elbows.